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Bluetooth devices on board of traffic objects depict an easy way of detecting motions of persons and goods. However, the precondition is that one Bluetooth device (the observer) discovers another Bluetooth device — namely the on board device — within a very short time range. Device discovery in case of Bluetooth connection establishment is heavily dependent from the so called inquiry process which...
A field survey of Guangzhou Bus Rapid Transit system was carried out to obtain data along the road and the junction, and on this basis, simulation modeling for Guangzhou city bus rapid transit (BRT) was carried out by the simulation software Vissim microscopic simulation platform. Combined the simulation data with the relevant definition of HCM, an evaluative analysis of impact of Guangzhou BRT on...
For the safety applications in road vehicle communication, the existing research did not take it into account that the generation of the safety messages is event driven and the network traffic is self-similar. We propose an ON/OFF Pareto process based safety application self-similar model according to the above features and prove the effectiveness of this model analytically. Then we verify the model...
Traffic simulations are being increasingly utilized as transportation systems have become more complex and congested. However, most simulation models have limitations in overcapacity demand conditions. When traffic in a congested area "fills" the available roadway space additional traffic demand may never be allowed to enter the network. The intent of this paper is to explore one possible...
Cyber-Physical Systems (CPS) is an integration of the computation process and physical processes, which can be modeled as a hybrid system. From the modeling perspective of CPS systems, the paper analyzes the limitations of traditional hybrid models, and proposes the extended hybrid automata model. The extended model is capable of representing hierarchy, concurrency and network delay. Finally, by modeling...
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